Casement window



Jan. l5, 1935. E ||l ELUSON 1,988,306

CASEMENT WINDOW original Filed Nov. 9, 1929 gwuento'v EDM/Aren Ht ELU5cm @ff /Wf/ VIA-1,@ lm,

clearly understood from a consideration of the following specificationwhich is taken in conjunction with the accompanying drawing.- and inPatentedl Jan.l A19.35

UNITED STATES PATENT. ori-*icsf I 1mm Edward ll. Ellison, Jamestown, N.Y., assigner, by mesne assignments, to 'Hopes Windows, Inc.,

originalappucaaan November 9,. 1929., serial No. 405,937. vDivided andthis application October vzzz, 193e, sei-uu Nassau!) such as to permitfr ee and independent mount-- ing of a easement' screen. Y

Practically allv easement windows are adapted to be providedwithscreens. I- Sineewindows of this type normally vswing outwardly, itisneces- 'sary that the screen be located on the inside of.

the easement. This p'raetice involves providing a easement latch andoperator in a manner such as to permit free installationor removal of `ascreen. 'lhe following specication discloses a easement latch mounted onthe frame `and operabLv con--v nected with the sash. The location of thelatch is such that a screen may be installed directly with totaldisregard for saidlatch.'

The principalobiect of this invention therefore lies in the .provisionof a easement window latch which permits vindependent installation of astandard screen. y i

against the easement frame, independently of and Y Ammerobject of 'theinvention' ues man provision of a latch adapted to reach outand'.

draw the sash frame.,

Further'objects of the invention may be more into close engagement withthe which l Fig. 1 is a fragmentary front elevation of a easementwindow, showing the location of va easement latch relative to aremovable screen;

Fig. 2 is a side elevation of the'casement'latch in engagement with thesash, parts of both frame )and sash beingbrokenaway'to clarify the show'ingf circumferential edge thereof closely approaches Fig. 3 is a sideelevation showingl the easement latchindisengagedposition; l Fig. 4Iis`asectional ,view ltaken substantially on the line 4- 4j of Figure 2 andshows the structural amuser the @sement latch; and

Fig. 5 aanorimnm viewtarenontnelme5-'5ofFl8ure1andshowsthemethodofremovablysecuring the-screenagai'nst theeasement.

Reference isn'ow had to the drawing, wherein is shown a easement windowcomprising a' casement frame 14 which is formed-to provide an in- 'nervertical face 15web 18 and outer flange 17'.

AA recess, created by the wall 15 and flange 17'.`

the'lug 47 'and at the lower Jamestown, N. Y., a' corporation cementedin the opening provided therefore,

Reissue-D constitutes the means by which said frame, is.

vThe sash 20, mounted in the frame 14, has stiles l 22 whichare'formedwith a web portion 23 which terminates in inner and. outerianges 24 and25. The usual ange 27 projects inwardly fromv thejweb 23, forming ashoulder against which a pane of glass is mounted.

When the sash is moved into engagement wi 'l the easement frame 14, alatch member 29 is manipulated' to prevent inadvertent orundesiredopening of said sash from the exterior thereof. v

'Ihe latch member 29,'mounted on the frame stile is comprised of a fixedsupporting element 30 and movableV element 32.' The fixed element isformed with an outwardly projecting central ange 33.

through which an opening is drilled. Continff uing above and belowA thecentral flange 33 are angularly disposed flanges 36, through whichopenings 37 'are drilled. The fixed element 30 is mounted on the framestile by 'inserting screws 39 in the openings 37, engaging said screwswith openings provided therefore inthe stile.- A-

slotted opening 41 is formed in the stile and, when the element 30fismounted, said opening lies between the flanges 36 and ladJacent thecentral flange 33. The movable element 32 comprises a substantiallycircular plate 42Zand an integral actuating handle 43; The plate, 42 isformed with .a center pin-45 which engages the opening" 35 in the ange33 bf .the xed element 30 and is adapted to plvotally support saidplate. The outer end of the pin 45 is headed over to prevent dislodgmentof Vthe movable element. Formed in the circumferential edge of andatright angles to the plate 4 2 is a lug 47, the thickness of which 4isslightly lcssthan that of the opening 4l in the 'stile in which .it ismounted. Thepurpose of this is to. permit inserting the. lug 47 throughthe -opening 4 1. It is pointed out that the plate 42 projects into theopening41to`a point where the the walls of said opening and; since saidplate is circular, it may be rotated in said openingwithout anyvariation in clearance. -A bracket 48 is secured to the web 23 ofthesash stile by screws 50. This bracket has a cam face curved at theupper end to coincide with th of Itravel of the bracket 48. Since theplate 42, to whiehfthe/ mg .4v 1s attached, is nxed @gramme/scie, fur-2. y ther downward movement of the handle 43 ca'uses the bracket 48 tomove inwardly toward the frame, carrying with it the sash 20. It willthus be understood that the sash need not be closely engaged with theframev when operating the latch member by reason of the fact `that thelug 47, in acting upon the cam-like bracket 48, reaches out and drawsthe sash into close engagement' with the frame. Much difficulty has beenencountered in providing a casement latch of sufficient strength todrraw a sash into uniformly close engagement with a frame. Thestructure. above described, however, causes the uniform engagement of acasement sash with the 'frame even though said sash may have becomeslightly sprung for one reason orlanother.

Secured to the inner face of the stile of the casement frame, and bymeans of screws 52, are plates 53. These plates are for the purpose o fmounting a screen 54 ofk standard structure. It is contemplated to'lmount one or more ol-1 the plates 53 on the stiles of the frame bywhich to removably support the screen. Each plate is formed with acenter reverse flange element 56, the -web 57 of which defines thelocation of the screen-Stiles. The element 56 and the body of the plateare drilled to receive a spring hook 58. The end of the hook, lyingwithin the plate, is headed over to prevent 'removal therefrom,` thuspermitting a lpivotal relative movement between the plate and hook,whereby to rotatesaid hook to engage or release the screen 54.

To` mount the screen against the casement frame, the hooks 58 are turnedto'point either Vupwardly or downwardly. 'I'he lower rail ofthe screenArests -upon a sash adjuster supportY 59 with the Ascreen stiles abutting-the web 57y of each of the plates 53. After mounting the screen,

'the hooks 58 areY moved to engage the screen stiles.

Attention is directed to the fact that the screen frarne, at all points,slightly overlaps the inner edge of the casement frame and is caused toclosely engage. said frame under pressure of the spring hooks 58. I-twill be further noted that the screen 54 is mounted above the sashadjuster support 59, and to one side of the latch y29, and may thereforebe inserted oi' removed with total disregard'for either adjuster orlatch. It thus follows that a screen of standard size and construction"maybe mounted on a casement window having latching means as shown anddescribed. The structure of the latch 29 is such thatthe parts thereof,when mounted on the frame stile, take up but a small part ofthe' stiledepth. The reasonior this is apparent, since approximately three-eighthsof an inch of the stile is required to be embedded or anchored to thewalls forming the casement opening and approximately one-fourth of aninch is required by the overlapping screen 54. 'Ihe space remainingbetween the edge ofthe screen and the building wall, and avithin whichthe latch 29 must be mounted, is not over one-half in'ch. It is wellknown that, while a-casement sash is readily adjustable, it can not bereadily drawn into engagement with a? frame without the aid of a stronglatch mechanism, by reason of the'fact that the sashmay be slightlysprung ordirt may have gathered between the sash and frame 'which wouldtend to prevent the ready engagement of these units Through the use of avertically reciprocating latch member, applicant is enabled to keep hisstructure well within the space limit and at the same time provide alatch member which is of suiiicient strength to at all times engage anddraw the sash intova sealing engagement with the frame.

While but one modification of thisinvention has been shown anddescribed, applicant does not intend to be limited thereto, since it isobvious to those skilled in the art that certain structural changes maybe made without departing from the spirit and scope of theinvention asset forth in the hereunto annexed claims.

Having thus set forth my invention what I claim. as new and for which Idesire protection by Letters Patent is:

1. A latch for a casement window embodying a frame and a windowpivotally associated with said frame, said latch comprising a stationaryelement secured to said'frame, a rotatable plate mounted 'on saidelement and projecting through an opening in said frame, la cam on saidwindow, a lug on said plate engageable with said cam, said plate beingrotatable in a plane perpendicular vto a plane determined by the innerface 'of said frame, whereby to move said window in a direc#4 tionsubstantially'radially of the axis of-rotation of said plate, when saidwindow is a position to permit engagement of said lug with said cam.

2. A latch for a casement window embodying a frame partially embedded ina building wall, a

face of said frame,'said latch comprising a stationary element securedto the exposedportion of said frame between the building wall and said`screen, a movable plate supported on said element and projecting throughan opening in said frame,

contact means on lsaid window, a lug on that portion of said plate lyingwithin the rectangular spacev deflned by said window vand said frame;

said lug, when said plate is manipulated, being constrained to moveoutwardly to engage said contact means and again-inwardly to draw saidwindow into abutmentwith said frame.

3. A latch for a casement window -embodying ment and projecting through-an opening in saidframe, a cam on said window, a lug on thecircumferential edge of said plate engageable with said cam, a handle onsaid plate, said plate and said handle being rotatable in a planeperpendicular to a plane determined bythe inner face of said framewhereby said handle, in all positions, will be removed from theinstallation or removal path of said screen.

EDWARD H. ELLISON.

a frame partially embedded in a building wall, a f

